Evaluation of the use of Gossypium hirsutum oil and supercritical ethanol for the production of ethyl esters in non-catalytic process

2017 ◽  
Vol 96 (3) ◽  
pp. 651-658
Author(s):  
Saulo Azevêdo ◽  
Ênio Santos ◽  
Aldo Medeiros ◽  
Anderson Jesus ◽  
Humberto Oliveira ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Ethyl Esters ◽  
Catalytic Process ◽  
Supercritical Ethanol

scholarly journals Fatty Acid Ethyl Esters from Animal Fat Using Supercritical Ethanol Process

2018 ◽  
Vol 32 (1) ◽  
pp. 490-496 ◽  
Author(s):  
David Bolonio ◽  
Philipp Marco Neu ◽  
Sigurd Schober ◽  
María-Jesús García-Martínez ◽  
Martin Mittelbach ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Animal Fat ◽  
Supercritical Ethanol

scholarly journals Non-Catalytic Production of Ethyl Esters Using Supercritical Ethanol in Continuous Mode

10.5772/52013 ◽  
2012 ◽  
Author(s):  
Camila da ◽  
Igncio Vieitez ◽  
Ivan Jachmanin ◽  
Fernanda de ◽  
Lcio Cardozo ◽  
...  
Keyword(s):  
Ethyl Esters ◽  
Continuous Mode ◽  
Supercritical Ethanol

Continuous synthesis of castor oil ethyl esters under supercritical ethanol

2011 ◽  
Vol 56 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Ignacio Vieitez ◽  
María J. Pardo ◽  
Camila da Silva ◽  
Cristiane Bertoldi ◽  
Fernanda de Castilhos ◽  
...  
Keyword(s):  
Castor Oil ◽  
Ethyl Esters ◽  
Continuous Synthesis ◽  
Supercritical Ethanol

Continuous production of fatty acid ethyl esters from sunflower oil using supercritical ethanol

Fuel ◽  
2012 ◽  
Vol 97 ◽  
pp. 703-709 ◽  
Author(s):  
A. Velez ◽  
G. Soto ◽  
P. Hegel ◽  
G. Mabe ◽  
S. Pereda
Keyword(s):  
Fatty Acid ◽  
Sunflower Oil ◽  
Continuous Production ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Supercritical Ethanol

Stability of ethyl esters from soybean oil exposed to high temperatures in supercritical ethanol

2011 ◽  
Vol 56 (3) ◽  
pp. 265-270 ◽  
Author(s):  
Ignacio Vieitez ◽  
Camila da Silva ◽  
Isabella Alckmin ◽  
Fernanda de Castilhos ◽  
J. Vladimir Oliveira ◽  
...  
Keyword(s):  
Soybean Oil ◽  
High Temperatures ◽  
Ethyl Esters ◽  
Supercritical Ethanol

Non-catalytic production of fatty acid ethyl esters from soybean oil with supercritical ethanol in a two-step process using a microtube reactor

2011 ◽  
Vol 35 (1) ◽  
pp. 526-532 ◽  
Author(s):  
Camila da Silva ◽  
Ana Paula de Lima ◽  
Fernanda de Castilhos ◽  
Lúcio Cardozo Filho ◽  
J. Vladimir Oliveira
Keyword(s):  
Fatty Acid ◽  
Soybean Oil ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Step Process ◽  
Supercritical Ethanol

Crystal structures of Magnaporthe oryzae trehalose-6-phosphate synthase (MoTps1) suggest a model for catalytic process of Tps1

2019 ◽  
Vol 476 (21) ◽  
pp. 3227-3240 ◽  
Author(s):  
Shanshan Wang ◽  
Yanxiang Zhao ◽  
Long Yi ◽  
Minghe Shen ◽  
Chao Wang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Conformational Changes ◽  
Magnaporthe Oryzae ◽  
Structural Information ◽  
Complex Structure ◽  
Critical Role ◽  
Catalytic Process ◽  
Structural Basis ◽  
Salt Bridges ◽  
Terminal Domain

Trehalose-6-phosphate (T6P) synthase (Tps1) catalyzes the formation of T6P from UDP-glucose (UDPG) (or GDPG, etc.) and glucose-6-phosphate (G6P), and structural basis of this process has not been well studied. MoTps1 (Magnaporthe oryzae Tps1) plays a critical role in carbon and nitrogen metabolism, but its structural information is unknown. Here we present the crystal structures of MoTps1 apo, binary (with UDPG) and ternary (with UDPG/G6P or UDP/T6P) complexes. MoTps1 consists of two modified Rossmann-fold domains and a catalytic center in-between. Unlike Escherichia coli OtsA (EcOtsA, the Tps1 of E. coli), MoTps1 exists as a mixture of monomer, dimer, and oligomer in solution. Inter-chain salt bridges, which are not fully conserved in EcOtsA, play primary roles in MoTps1 oligomerization. Binding of UDPG by MoTps1 C-terminal domain modifies the substrate pocket of MoTps1. In the MoTps1 ternary complex structure, UDP and T6P, the products of UDPG and G6P, are detected, and substantial conformational rearrangements of N-terminal domain, including structural reshuffling (β3–β4 loop to α0 helix) and movement of a ‘shift region' towards the catalytic centre, are observed. These conformational changes render MoTps1 to a ‘closed' state compared with its ‘open' state in apo or UDPG complex structures. By solving the EcOtsA apo structure, we confirmed that similar ligand binding induced conformational changes also exist in EcOtsA, although no structural reshuffling involved. Based on our research and previous studies, we present a model for the catalytic process of Tps1. Our research provides novel information on MoTps1, Tps1 family, and structure-based antifungal drug design.

Adjuvant therapeutic use of supercritical-ethanol extracts of Curcuma species with cancer drugs in rhabdomycosarcoma cell lines

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
C Ramachandran ◽  
SM Nair ◽  
KW Quirrin ◽  
EA Escalon ◽  
SJ Melnick
Keyword(s):  
Cell Lines ◽  
Therapeutic Use ◽  
Cancer Drugs ◽  
Supercritical Ethanol ◽  
Ethanol Extracts
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